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Finding the Fourth Proportional to 156,153.98, 215,492.45 and 84,533.95

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Solution

The fourth proportional to 156,153.98, 215,492.45 and 84,533.95 is: 116,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153.98 : 215,492.45 = 84,533.95 : x
  2. Step 2: Convert to fraction form
    156,153.98/215,492.45 = 84,533.95/x
  3. Step 3: Cross multiply
    156,153.98x = 215,492.45 × 84,533.95
  4. Step 4: Simplify right side
    156,153.98x = 18,216,428,157.38
  5. Step 5: Solve for x
    x = 18,216,428,157.38/156,153.98
  6. Step 6: Final answer
    x = 116,656.83

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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.