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Finding the Fourth Proportional to 72,062.44, 107,547.09 and 70,196.20

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Solution

The fourth proportional to 72,062.44, 107,547.09 and 70,196.20 is: 104,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,062.44 : 107,547.09 = 70,196.20 : x
  2. Step 2: Convert to fraction form
    72,062.44/107,547.09 = 70,196.20/x
  3. Step 3: Cross multiply
    72,062.44x = 107,547.09 × 70,196.20
  4. Step 4: Simplify right side
    72,062.44x = 7,549,397,039.06
  5. Step 5: Solve for x
    x = 7,549,397,039.06/72,062.44
  6. Step 6: Final answer
    x = 104,761.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.