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Finding the Fourth Proportional to 153,476.04, 211,793.72 and 85,492.92

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Solution

The fourth proportional to 153,476.04, 211,793.72 and 85,492.92 is: 117,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,476.04 : 211,793.72 = 85,492.92 : x
  2. Step 2: Convert to fraction form
    153,476.04/211,793.72 = 85,492.92/x
  3. Step 3: Cross multiply
    153,476.04x = 211,793.72 × 85,492.92
  4. Step 4: Simplify right side
    153,476.04x = 18,106,863,560.46
  5. Step 5: Solve for x
    x = 18,106,863,560.46/153,476.04
  6. Step 6: Final answer
    x = 117,978.44

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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.