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Finding the Fourth Proportional to 111,592.50, 154,000.08 and 61,291.50

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Solution

The fourth proportional to 111,592.50, 154,000.08 and 61,291.50 is: 84,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,592.50 : 154,000.08 = 61,291.50 : x
  2. Step 2: Convert to fraction form
    111,592.50/154,000.08 = 61,291.50/x
  3. Step 3: Cross multiply
    111,592.50x = 154,000.08 × 61,291.50
  4. Step 4: Simplify right side
    111,592.50x = 9,438,895,903.32
  5. Step 5: Solve for x
    x = 9,438,895,903.32/111,592.50
  6. Step 6: Final answer
    x = 84,583.60

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1.5x scale

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.