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Finding the Fourth Proportional to 267,480, 369,122.40 and 148,248

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Solution

The fourth proportional to 267,480, 369,122.40 and 148,248 is: 204,582.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,480 : 369,122.40 = 148,248 : x
  2. Step 2: Convert to fraction form
    267,480/369,122.40 = 148,248/x
  3. Step 3: Cross multiply
    267,480x = 369,122.40 × 148,248
  4. Step 4: Simplify right side
    267,480x = 54,721,657,555.20
  5. Step 5: Solve for x
    x = 54,721,657,555.20/267,480
  6. Step 6: Final answer
    x = 204,582.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.