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Finding the Fourth Proportional to 75,038.92, 112,477.38 and 48,762.52

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Solution

The fourth proportional to 75,038.92, 112,477.38 and 48,762.52 is: 73,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,038.92 : 112,477.38 = 48,762.52 : x
  2. Step 2: Convert to fraction form
    75,038.92/112,477.38 = 48,762.52/x
  3. Step 3: Cross multiply
    75,038.92x = 112,477.38 × 48,762.52
  4. Step 4: Simplify right side
    75,038.92x = 5,484,680,491.80
  5. Step 5: Solve for x
    x = 5,484,680,491.80/75,038.92
  6. Step 6: Final answer
    x = 73,091.14

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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.