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Finding the Fourth Proportional to 235,477.65, 353,167.07 and 77,669.13

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Solution

The fourth proportional to 235,477.65, 353,167.07 and 77,669.13 is: 116,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,477.65 : 353,167.07 = 77,669.13 : x
  2. Step 2: Convert to fraction form
    235,477.65/353,167.07 = 77,669.13/x
  3. Step 3: Cross multiply
    235,477.65x = 353,167.07 × 77,669.13
  4. Step 4: Simplify right side
    235,477.65x = 27,430,178,683.20
  5. Step 5: Solve for x
    x = 27,430,178,683.20/235,477.65
  6. Step 6: Final answer
    x = 116,487.40

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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.