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Finding the Fourth Proportional to 249,489.60, 344,342.88 and 148,943.04

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Solution

The fourth proportional to 249,489.60, 344,342.88 and 148,943.04 is: 205,569.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,489.60 : 344,342.88 = 148,943.04 : x
  2. Step 2: Convert to fraction form
    249,489.60/344,342.88 = 148,943.04/x
  3. Step 3: Cross multiply
    249,489.60x = 344,342.88 × 148,943.04
  4. Step 4: Simplify right side
    249,489.60x = 51,287,475,349.56
  5. Step 5: Solve for x
    x = 51,287,475,349.56/249,489.60
  6. Step 6: Final answer
    x = 205,569.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.