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Finding the Fourth Proportional to 191,957.32, 287,980.97 and 65,598.61

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Solution

The fourth proportional to 191,957.32, 287,980.97 and 65,598.61 is: 98,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,957.32 : 287,980.97 = 65,598.61 : x
  2. Step 2: Convert to fraction form
    191,957.32/287,980.97 = 65,598.61/x
  3. Step 3: Cross multiply
    191,957.32x = 287,980.97 × 65,598.61
  4. Step 4: Simplify right side
    191,957.32x = 18,891,151,199.46
  5. Step 5: Solve for x
    x = 18,891,151,199.46/191,957.32
  6. Step 6: Final answer
    x = 98,413.29

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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.