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Finding the Fourth Proportional to 243,730.17, 365,595.30 and 66,263.40

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Solution

The fourth proportional to 243,730.17, 365,595.30 and 66,263.40 is: 99,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,730.17 : 365,595.30 = 66,263.40 : x
  2. Step 2: Convert to fraction form
    243,730.17/365,595.30 = 66,263.40/x
  3. Step 3: Cross multiply
    243,730.17x = 365,595.30 × 66,263.40
  4. Step 4: Simplify right side
    243,730.17x = 24,225,587,602.02
  5. Step 5: Solve for x
    x = 24,225,587,602.02/243,730.17
  6. Step 6: Final answer
    x = 99,395.11

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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.