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Finding the Fourth Proportional to 124,007.90, 171,123.24 and 69,557.08

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Solution

The fourth proportional to 124,007.90, 171,123.24 and 69,557.08 is: 95,984.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,007.90 : 171,123.24 = 69,557.08 : x
  2. Step 2: Convert to fraction form
    124,007.90/171,123.24 = 69,557.08/x
  3. Step 3: Cross multiply
    124,007.90x = 171,123.24 × 69,557.08
  4. Step 4: Simplify right side
    124,007.90x = 11,902,832,894.54
  5. Step 5: Solve for x
    x = 11,902,832,894.54/124,007.90
  6. Step 6: Final answer
    x = 95,984.47

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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.