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Finding the Fourth Proportional to 154,490.90, 216,598.30 and 154,490.90

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Solution

The fourth proportional to 154,490.90, 216,598.30 and 154,490.90 is: 216,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,490.90 : 216,598.30 = 154,490.90 : x
  2. Step 2: Convert to fraction form
    154,490.90/216,598.30 = 154,490.90/x
  3. Step 3: Cross multiply
    154,490.90x = 216,598.30 × 154,490.90
  4. Step 4: Simplify right side
    154,490.90x = 33,462,466,305.47
  5. Step 5: Solve for x
    x = 33,462,466,305.47/154,490.90
  6. Step 6: Final answer
    x = 216,598.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.