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Finding the Fourth Proportional to 157,079.40, 235,734.30 and 104,471.40

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Solution

The fourth proportional to 157,079.40, 235,734.30 and 104,471.40 is: 156,783.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,079.40 : 235,734.30 = 104,471.40 : x
  2. Step 2: Convert to fraction form
    157,079.40/235,734.30 = 104,471.40/x
  3. Step 3: Cross multiply
    157,079.40x = 235,734.30 × 104,471.40
  4. Step 4: Simplify right side
    157,079.40x = 24,627,492,349.02
  5. Step 5: Solve for x
    x = 24,627,492,349.02/157,079.40
  6. Step 6: Final answer
    x = 156,783.72

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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.