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Finding the Fourth Proportional to 157,560.34, 217,433.95 and 85,941.90

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Solution

The fourth proportional to 157,560.34, 217,433.95 and 85,941.90 is: 118,600.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,560.34 : 217,433.95 = 85,941.90 : x
  2. Step 2: Convert to fraction form
    157,560.34/217,433.95 = 85,941.90/x
  3. Step 3: Cross multiply
    157,560.34x = 217,433.95 × 85,941.90
  4. Step 4: Simplify right side
    157,560.34x = 18,686,686,787.51
  5. Step 5: Solve for x
    x = 18,686,686,787.51/157,560.34
  6. Step 6: Final answer
    x = 118,600.19

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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.