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Finding the Fourth Proportional to 176,712.21, 243,859.49 and 98,127.53

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Solution

The fourth proportional to 176,712.21, 243,859.49 and 98,127.53 is: 135,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,712.21 : 243,859.49 = 98,127.53 : x
  2. Step 2: Convert to fraction form
    176,712.21/243,859.49 = 98,127.53/x
  3. Step 3: Cross multiply
    176,712.21x = 243,859.49 × 98,127.53
  4. Step 4: Simplify right side
    176,712.21x = 23,929,329,420.76
  5. Step 5: Solve for x
    x = 23,929,329,420.76/176,712.21
  6. Step 6: Final answer
    x = 135,414.13

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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.