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Finding the Fourth Proportional to 88,312.30, 121,828.11 and 52,476.93

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Solution

The fourth proportional to 88,312.30, 121,828.11 and 52,476.93 is: 72,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,312.30 : 121,828.11 = 52,476.93 : x
  2. Step 2: Convert to fraction form
    88,312.30/121,828.11 = 52,476.93/x
  3. Step 3: Cross multiply
    88,312.30x = 121,828.11 × 52,476.93
  4. Step 4: Simplify right side
    88,312.30x = 6,393,165,200.50
  5. Step 5: Solve for x
    x = 6,393,165,200.50/88,312.30
  6. Step 6: Final answer
    x = 72,392.69

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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.