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Finding the Fourth Proportional to 110,216.80, 152,088.52 and 61,820.64

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Solution

The fourth proportional to 110,216.80, 152,088.52 and 61,820.64 is: 85,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,216.80 : 152,088.52 = 61,820.64 : x
  2. Step 2: Convert to fraction form
    110,216.80/152,088.52 = 61,820.64/x
  3. Step 3: Cross multiply
    110,216.80x = 152,088.52 × 61,820.64
  4. Step 4: Simplify right side
    110,216.80x = 9,402,209,643.05
  5. Step 5: Solve for x
    x = 9,402,209,643.05/110,216.80
  6. Step 6: Final answer
    x = 85,306.50

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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.