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Finding the Fourth Proportional to 243,211.70, 364,817.55 and 65,746.10

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Solution

The fourth proportional to 243,211.70, 364,817.55 and 65,746.10 is: 98,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,211.70 : 364,817.55 = 65,746.10 : x
  2. Step 2: Convert to fraction form
    243,211.70/364,817.55 = 65,746.10/x
  3. Step 3: Cross multiply
    243,211.70x = 364,817.55 × 65,746.10
  4. Step 4: Simplify right side
    243,211.70x = 23,985,331,124.06
  5. Step 5: Solve for x
    x = 23,985,331,124.06/243,211.70
  6. Step 6: Final answer
    x = 98,619.15

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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.