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Finding the Fourth Proportional to 267,228.30, 400,878.90 and 98,707.80

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Solution

The fourth proportional to 267,228.30, 400,878.90 and 98,707.80 is: 148,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,228.30 : 400,878.90 = 98,707.80 : x
  2. Step 2: Convert to fraction form
    267,228.30/400,878.90 = 98,707.80/x
  3. Step 3: Cross multiply
    267,228.30x = 400,878.90 × 98,707.80
  4. Step 4: Simplify right side
    267,228.30x = 39,569,874,285.42
  5. Step 5: Solve for x
    x = 39,569,874,285.42/267,228.30
  6. Step 6: Final answer
    x = 148,075.16

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1.5x scale

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.