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Finding the Fourth Proportional to 156,808.32, 235,212 and 63,312.96

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Solution

The fourth proportional to 156,808.32, 235,212 and 63,312.96 is: 94,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,808.32 : 235,212 = 63,312.96 : x
  2. Step 2: Convert to fraction form
    156,808.32/235,212 = 63,312.96/x
  3. Step 3: Cross multiply
    156,808.32x = 235,212 × 63,312.96
  4. Step 4: Simplify right side
    156,808.32x = 14,891,967,947.52
  5. Step 5: Solve for x
    x = 14,891,967,947.52/156,808.32
  6. Step 6: Final answer
    x = 94,969.25

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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.