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Finding the Fourth Proportional to 236,359, 354,541.59 and 78,587.45

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Solution

The fourth proportional to 236,359, 354,541.59 and 78,587.45 is: 117,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,359 : 354,541.59 = 78,587.45 : x
  2. Step 2: Convert to fraction form
    236,359/354,541.59 = 78,587.45/x
  3. Step 3: Cross multiply
    236,359x = 354,541.59 × 78,587.45
  4. Step 4: Simplify right side
    236,359x = 27,862,519,477.05
  5. Step 5: Solve for x
    x = 27,862,519,477.05/236,359
  6. Step 6: Final answer
    x = 117,882.20

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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.