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Finding the Fourth Proportional to 66,155.98, 99,675.30 and 59,838.16

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Solution

The fourth proportional to 66,155.98, 99,675.30 and 59,838.16 is: 90,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,155.98 : 99,675.30 = 59,838.16 : x
  2. Step 2: Convert to fraction form
    66,155.98/99,675.30 = 59,838.16/x
  3. Step 3: Cross multiply
    66,155.98x = 99,675.30 × 59,838.16
  4. Step 4: Simplify right side
    66,155.98x = 5,964,386,549.45
  5. Step 5: Solve for x
    x = 5,964,386,549.45/66,155.98
  6. Step 6: Final answer
    x = 90,156.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.