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Finding the Fourth Proportional to 118,047.09, 162,900.25 and 64,330.95

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Solution

The fourth proportional to 118,047.09, 162,900.25 and 64,330.95 is: 88,774.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,047.09 : 162,900.25 = 64,330.95 : x
  2. Step 2: Convert to fraction form
    118,047.09/162,900.25 = 64,330.95/x
  3. Step 3: Cross multiply
    118,047.09x = 162,900.25 × 64,330.95
  4. Step 4: Simplify right side
    118,047.09x = 10,479,527,837.74
  5. Step 5: Solve for x
    x = 10,479,527,837.74/118,047.09
  6. Step 6: Final answer
    x = 88,774.13

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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.