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Finding the Fourth Proportional to 157,226.57, 216,970.50 and 85,606.59

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Solution

The fourth proportional to 157,226.57, 216,970.50 and 85,606.59 is: 118,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,226.57 : 216,970.50 = 85,606.59 : x
  2. Step 2: Convert to fraction form
    157,226.57/216,970.50 = 85,606.59/x
  3. Step 3: Cross multiply
    157,226.57x = 216,970.50 × 85,606.59
  4. Step 4: Simplify right side
    157,226.57x = 18,574,104,068.26
  5. Step 5: Solve for x
    x = 18,574,104,068.26/157,226.57
  6. Step 6: Final answer
    x = 118,135.91

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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.