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Finding the Fourth Proportional to 157,353.03, 217,147.05 and 85,733.64

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Solution

The fourth proportional to 157,353.03, 217,147.05 and 85,733.64 is: 118,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,353.03 : 217,147.05 = 85,733.64 : x
  2. Step 2: Convert to fraction form
    157,353.03/217,147.05 = 85,733.64/x
  3. Step 3: Cross multiply
    157,353.03x = 217,147.05 × 85,733.64
  4. Step 4: Simplify right side
    157,353.03x = 18,616,807,011.76
  5. Step 5: Solve for x
    x = 18,616,807,011.76/157,353.03
  6. Step 6: Final answer
    x = 118,312.35

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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.