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Finding the Fourth Proportional to 121,277.60, 181,916.40 and 62,228.60

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Solution

The fourth proportional to 121,277.60, 181,916.40 and 62,228.60 is: 93,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,277.60 : 181,916.40 = 62,228.60 : x
  2. Step 2: Convert to fraction form
    121,277.60/181,916.40 = 62,228.60/x
  3. Step 3: Cross multiply
    121,277.60x = 181,916.40 × 62,228.60
  4. Step 4: Simplify right side
    121,277.60x = 11,320,402,889.04
  5. Step 5: Solve for x
    x = 11,320,402,889.04/121,277.60
  6. Step 6: Final answer
    x = 93,342.90

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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.