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Finding the Fourth Proportional to 249,153.60, 373,669.65 and 71,642.10

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Solution

The fourth proportional to 249,153.60, 373,669.65 and 71,642.10 is: 107,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,153.60 : 373,669.65 = 71,642.10 : x
  2. Step 2: Convert to fraction form
    249,153.60/373,669.65 = 71,642.10/x
  3. Step 3: Cross multiply
    249,153.60x = 373,669.65 × 71,642.10
  4. Step 4: Simplify right side
    249,153.60x = 26,770,478,432.27
  5. Step 5: Solve for x
    x = 26,770,478,432.27/249,153.60
  6. Step 6: Final answer
    x = 107,445.68

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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.