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Finding the Fourth Proportional to 127,326,658.60, 190,989,987.90 and 127,326,658.60

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Solution

The fourth proportional to 127,326,658.60, 190,989,987.90 and 127,326,658.60 is: 190,989,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,326,658.60 : 190,989,987.90 = 127,326,658.60 : x
  2. Step 2: Convert to fraction form
    127,326,658.60/190,989,987.90 = 127,326,658.60/x
  3. Step 3: Cross multiply
    127,326,658.60x = 190,989,987.90 × 127,326,658.60
  4. Step 4: Simplify right side
    127,326,658.60x = 24,318,116,985,361,432
  5. Step 5: Solve for x
    x = 24,318,116,985,361,432/127,326,658.60
  6. Step 6: Final answer
    x = 190,989,987.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.