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Finding the Fourth Proportional to 243,709.48, 365,673.18 and 154,939.24

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Solution

The fourth proportional to 243,709.48, 365,673.18 and 154,939.24 is: 232,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,709.48 : 365,673.18 = 154,939.24 : x
  2. Step 2: Convert to fraction form
    243,709.48/365,673.18 = 154,939.24/x
  3. Step 3: Cross multiply
    243,709.48x = 365,673.18 × 154,939.24
  4. Step 4: Simplify right side
    243,709.48x = 56,657,124,597.58
  5. Step 5: Solve for x
    x = 56,657,124,597.58/243,709.48
  6. Step 6: Final answer
    x = 232,478.13

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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.