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Finding the Fourth Proportional to 176,740.40, 264,721.80 and 157,041.20

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Solution

The fourth proportional to 176,740.40, 264,721.80 and 157,041.20 is: 235,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,740.40 : 264,721.80 = 157,041.20 : x
  2. Step 2: Convert to fraction form
    176,740.40/264,721.80 = 157,041.20/x
  3. Step 3: Cross multiply
    176,740.40x = 264,721.80 × 157,041.20
  4. Step 4: Simplify right side
    176,740.40x = 41,572,229,138.16
  5. Step 5: Solve for x
    x = 41,572,229,138.16/176,740.40
  6. Step 6: Final answer
    x = 235,216.34

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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.