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Finding the Fourth Proportional to 124,294.61, 171,520.65 and 70,572.57

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Solution

The fourth proportional to 124,294.61, 171,520.65 and 70,572.57 is: 97,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,294.61 : 171,520.65 = 70,572.57 : x
  2. Step 2: Convert to fraction form
    124,294.61/171,520.65 = 70,572.57/x
  3. Step 3: Cross multiply
    124,294.61x = 171,520.65 × 70,572.57
  4. Step 4: Simplify right side
    124,294.61x = 12,104,653,078.57
  5. Step 5: Solve for x
    x = 12,104,653,078.57/124,294.61
  6. Step 6: Final answer
    x = 97,386.79

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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.