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Finding the Fourth Proportional to 157,159.34, 216,885.22 and 85,541.96

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Solution

The fourth proportional to 157,159.34, 216,885.22 and 85,541.96 is: 118,050.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,159.34 : 216,885.22 = 85,541.96 : x
  2. Step 2: Convert to fraction form
    157,159.34/216,885.22 = 85,541.96/x
  3. Step 3: Cross multiply
    157,159.34x = 216,885.22 × 85,541.96
  4. Step 4: Simplify right side
    157,159.34x = 18,552,786,813.83
  5. Step 5: Solve for x
    x = 18,552,786,813.83/157,159.34
  6. Step 6: Final answer
    x = 118,050.81

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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.