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Finding the Fourth Proportional to 243,158.60, 364,756.36 and 65,663.08

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Solution

The fourth proportional to 243,158.60, 364,756.36 and 65,663.08 is: 98,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,158.60 : 364,756.36 = 65,663.08 : x
  2. Step 2: Convert to fraction form
    243,158.60/364,756.36 = 65,663.08/x
  3. Step 3: Cross multiply
    243,158.60x = 364,756.36 × 65,663.08
  4. Step 4: Simplify right side
    243,158.60x = 23,951,026,047.19
  5. Step 5: Solve for x
    x = 23,951,026,047.19/243,158.60
  6. Step 6: Final answer
    x = 98,499.60

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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.