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Finding the Fourth Proportional to 249,136.38, 343,654.56 and 177,539.40

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Solution

The fourth proportional to 249,136.38, 343,654.56 and 177,539.40 is: 244,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,136.38 : 343,654.56 = 177,539.40 : x
  2. Step 2: Convert to fraction form
    249,136.38/343,654.56 = 177,539.40/x
  3. Step 3: Cross multiply
    249,136.38x = 343,654.56 × 177,539.40
  4. Step 4: Simplify right side
    249,136.38x = 61,012,224,389.66
  5. Step 5: Solve for x
    x = 61,012,224,389.66/249,136.38
  6. Step 6: Final answer
    x = 244,894.88

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1.5x scale

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.