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Finding the Fourth Proportional to 249,701.60, 374,552.40 and 165,720.80

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Solution

The fourth proportional to 249,701.60, 374,552.40 and 165,720.80 is: 248,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,701.60 : 374,552.40 = 165,720.80 : x
  2. Step 2: Convert to fraction form
    249,701.60/374,552.40 = 165,720.80/x
  3. Step 3: Cross multiply
    249,701.60x = 374,552.40 × 165,720.80
  4. Step 4: Simplify right side
    249,701.60x = 62,071,123,369.92
  5. Step 5: Solve for x
    x = 62,071,123,369.92/249,701.60
  6. Step 6: Final answer
    x = 248,581.20

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1.5x scale

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.