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Finding the Fourth Proportional to 169,874.79, 234,420.80 and 94,428.15

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Solution

The fourth proportional to 169,874.79, 234,420.80 and 94,428.15 is: 130,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,874.79 : 234,420.80 = 94,428.15 : x
  2. Step 2: Convert to fraction form
    169,874.79/234,420.80 = 94,428.15/x
  3. Step 3: Cross multiply
    169,874.79x = 234,420.80 × 94,428.15
  4. Step 4: Simplify right side
    169,874.79x = 22,135,921,993.38
  5. Step 5: Solve for x
    x = 22,135,921,993.38/169,874.79
  6. Step 6: Final answer
    x = 130,307.28

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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.