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Finding the Fourth Proportional to 93,032.40, 128,380.80 and 52,748.88

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Solution

The fourth proportional to 93,032.40, 128,380.80 and 52,748.88 is: 72,791.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,032.40 : 128,380.80 = 52,748.88 : x
  2. Step 2: Convert to fraction form
    93,032.40/128,380.80 = 52,748.88/x
  3. Step 3: Cross multiply
    93,032.40x = 128,380.80 × 52,748.88
  4. Step 4: Simplify right side
    93,032.40x = 6,771,943,413.50
  5. Step 5: Solve for x
    x = 6,771,943,413.50/93,032.40
  6. Step 6: Final answer
    x = 72,791.24

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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.