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Finding the Fourth Proportional to 157,152.56, 216,863.44 and 85,532.40

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Solution

The fourth proportional to 157,152.56, 216,863.44 and 85,532.40 is: 118,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,152.56 : 216,863.44 = 85,532.40 : x
  2. Step 2: Convert to fraction form
    157,152.56/216,863.44 = 85,532.40/x
  3. Step 3: Cross multiply
    157,152.56x = 216,863.44 × 85,532.40
  4. Step 4: Simplify right side
    157,152.56x = 18,548,850,495.46
  5. Step 5: Solve for x
    x = 18,548,850,495.46/157,152.56
  6. Step 6: Final answer
    x = 118,030.85

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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.