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Finding the Fourth Proportional to 157,573.93, 217,451.66 and 85,953.95

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Solution

The fourth proportional to 157,573.93, 217,451.66 and 85,953.95 is: 118,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,573.93 : 217,451.66 = 85,953.95 : x
  2. Step 2: Convert to fraction form
    157,573.93/217,451.66 = 85,953.95/x
  3. Step 3: Cross multiply
    157,573.93x = 217,451.66 × 85,953.95
  4. Step 4: Simplify right side
    157,573.93x = 18,690,829,111.06
  5. Step 5: Solve for x
    x = 18,690,829,111.06/157,573.93
  6. Step 6: Final answer
    x = 118,616.25

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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.