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Finding the Fourth Proportional to 127,326,209.80, 190,989,314.70 and 127,326,209.80

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Solution

The fourth proportional to 127,326,209.80, 190,989,314.70 and 127,326,209.80 is: 190,989,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,326,209.80 : 190,989,314.70 = 127,326,209.80 : x
  2. Step 2: Convert to fraction form
    127,326,209.80/190,989,314.70 = 127,326,209.80/x
  3. Step 3: Cross multiply
    127,326,209.80x = 190,989,314.70 × 127,326,209.80
  4. Step 4: Simplify right side
    127,326,209.80x = 24,317,945,553,050,420
  5. Step 5: Solve for x
    x = 24,317,945,553,050,420/127,326,209.80
  6. Step 6: Final answer
    x = 190,989,314.70

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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.