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Finding the Fourth Proportional to 370,111.16, 555,154.78 and 156,822.08

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Solution

The fourth proportional to 370,111.16, 555,154.78 and 156,822.08 is: 235,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,111.16 : 555,154.78 = 156,822.08 : x
  2. Step 2: Convert to fraction form
    370,111.16/555,154.78 = 156,822.08/x
  3. Step 3: Cross multiply
    370,111.16x = 555,154.78 × 156,822.08
  4. Step 4: Simplify right side
    370,111.16x = 87,060,527,321.54
  5. Step 5: Solve for x
    x = 87,060,527,321.54/370,111.16
  6. Step 6: Final answer
    x = 235,228.05

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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.