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Finding the Fourth Proportional to 292,829.60, 439,244.40 and 173,079.20

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Solution

The fourth proportional to 292,829.60, 439,244.40 and 173,079.20 is: 259,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,829.60 : 439,244.40 = 173,079.20 : x
  2. Step 2: Convert to fraction form
    292,829.60/439,244.40 = 173,079.20/x
  3. Step 3: Cross multiply
    292,829.60x = 439,244.40 × 173,079.20
  4. Step 4: Simplify right side
    292,829.60x = 76,024,069,356.48
  5. Step 5: Solve for x
    x = 76,024,069,356.48/292,829.60
  6. Step 6: Final answer
    x = 259,618.80

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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.