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Finding the Fourth Proportional to 103,925.52, 143,418.60 and 61,482.96

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Solution

The fourth proportional to 103,925.52, 143,418.60 and 61,482.96 is: 84,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,925.52 : 143,418.60 = 61,482.96 : x
  2. Step 2: Convert to fraction form
    103,925.52/143,418.60 = 61,482.96/x
  3. Step 3: Cross multiply
    103,925.52x = 143,418.60 × 61,482.96
  4. Step 4: Simplify right side
    103,925.52x = 8,817,800,047.06
  5. Step 5: Solve for x
    x = 8,817,800,047.06/103,925.52
  6. Step 6: Final answer
    x = 84,847.30

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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.