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Finding the Fourth Proportional to 157,426.60, 236,139.90 and 63,999.40

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Solution

The fourth proportional to 157,426.60, 236,139.90 and 63,999.40 is: 95,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,426.60 : 236,139.90 = 63,999.40 : x
  2. Step 2: Convert to fraction form
    157,426.60/236,139.90 = 63,999.40/x
  3. Step 3: Cross multiply
    157,426.60x = 236,139.90 × 63,999.40
  4. Step 4: Simplify right side
    157,426.60x = 15,112,811,916.06
  5. Step 5: Solve for x
    x = 15,112,811,916.06/157,426.60
  6. Step 6: Final answer
    x = 95,999.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.