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Finding the Fourth Proportional to 102,056.88, 153,088.20 and 28,184.88

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Solution

The fourth proportional to 102,056.88, 153,088.20 and 28,184.88 is: 42,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,056.88 : 153,088.20 = 28,184.88 : x
  2. Step 2: Convert to fraction form
    102,056.88/153,088.20 = 28,184.88/x
  3. Step 3: Cross multiply
    102,056.88x = 153,088.20 × 28,184.88
  4. Step 4: Simplify right side
    102,056.88x = 4,314,772,546.42
  5. Step 5: Solve for x
    x = 4,314,772,546.42/102,056.88
  6. Step 6: Final answer
    x = 42,278.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.