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Finding the Fourth Proportional to 176,306.40, 264,459.60 and 172,807.20

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Solution

The fourth proportional to 176,306.40, 264,459.60 and 172,807.20 is: 259,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,306.40 : 264,459.60 = 172,807.20 : x
  2. Step 2: Convert to fraction form
    176,306.40/264,459.60 = 172,807.20/x
  3. Step 3: Cross multiply
    176,306.40x = 264,459.60 × 172,807.20
  4. Step 4: Simplify right side
    176,306.40x = 45,700,522,989.12
  5. Step 5: Solve for x
    x = 45,700,522,989.12/176,306.40
  6. Step 6: Final answer
    x = 259,210.80

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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.