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Finding the Fourth Proportional to 116,156.15, 160,305.15 and 64,478.11

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Solution

The fourth proportional to 116,156.15, 160,305.15 and 64,478.11 is: 88,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,156.15 : 160,305.15 = 64,478.11 : x
  2. Step 2: Convert to fraction form
    116,156.15/160,305.15 = 64,478.11/x
  3. Step 3: Cross multiply
    116,156.15x = 160,305.15 × 64,478.11
  4. Step 4: Simplify right side
    116,156.15x = 10,336,173,034.26
  5. Step 5: Solve for x
    x = 10,336,173,034.26/116,156.15
  6. Step 6: Final answer
    x = 88,985.16

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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.