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Finding the Fourth Proportional to 243,505.21, 365,354.70 and 93,705.28

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Solution

The fourth proportional to 243,505.21, 365,354.70 and 93,705.28 is: 140,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,505.21 : 365,354.70 = 93,705.28 : x
  2. Step 2: Convert to fraction form
    243,505.21/365,354.70 = 93,705.28/x
  3. Step 3: Cross multiply
    243,505.21x = 365,354.70 × 93,705.28
  4. Step 4: Simplify right side
    243,505.21x = 34,235,664,159.71
  5. Step 5: Solve for x
    x = 34,235,664,159.71/243,505.21
  6. Step 6: Final answer
    x = 140,595.20

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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.