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Finding the Fourth Proportional to 157,160.70, 216,886.36 and 85,545.36

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Solution

The fourth proportional to 157,160.70, 216,886.36 and 85,545.36 is: 118,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,160.70 : 216,886.36 = 85,545.36 : x
  2. Step 2: Convert to fraction form
    157,160.70/216,886.36 = 85,545.36/x
  3. Step 3: Cross multiply
    157,160.70x = 216,886.36 × 85,545.36
  4. Step 4: Simplify right side
    157,160.70x = 18,553,621,745.29
  5. Step 5: Solve for x
    x = 18,553,621,745.29/157,160.70
  6. Step 6: Final answer
    x = 118,055.10

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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.