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Finding the Fourth Proportional to 267,353.60, 401,030.40 and 172,875.20

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Solution

The fourth proportional to 267,353.60, 401,030.40 and 172,875.20 is: 259,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,353.60 : 401,030.40 = 172,875.20 : x
  2. Step 2: Convert to fraction form
    267,353.60/401,030.40 = 172,875.20/x
  3. Step 3: Cross multiply
    267,353.60x = 401,030.40 × 172,875.20
  4. Step 4: Simplify right side
    267,353.60x = 69,328,210,606.08
  5. Step 5: Solve for x
    x = 69,328,210,606.08/267,353.60
  6. Step 6: Final answer
    x = 259,312.80

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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.