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Finding the Fourth Proportional to 124,545.66, 171,876.80 and 70,838.40

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Solution

The fourth proportional to 124,545.66, 171,876.80 and 70,838.40 is: 97,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,545.66 : 171,876.80 = 70,838.40 : x
  2. Step 2: Convert to fraction form
    124,545.66/171,876.80 = 70,838.40/x
  3. Step 3: Cross multiply
    124,545.66x = 171,876.80 × 70,838.40
  4. Step 4: Simplify right side
    124,545.66x = 12,175,477,154.93
  5. Step 5: Solve for x
    x = 12,175,477,154.93/124,545.66
  6. Step 6: Final answer
    x = 97,759.14

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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.