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Finding the Fourth Proportional to 259,094.39, 388,641.59 and 101,212.13

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Solution

The fourth proportional to 259,094.39, 388,641.59 and 101,212.13 is: 151,818.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,094.39 : 388,641.59 = 101,212.13 : x
  2. Step 2: Convert to fraction form
    259,094.39/388,641.59 = 101,212.13/x
  3. Step 3: Cross multiply
    259,094.39x = 388,641.59 × 101,212.13
  4. Step 4: Simplify right side
    259,094.39x = 39,335,240,681.22
  5. Step 5: Solve for x
    x = 39,335,240,681.22/259,094.39
  6. Step 6: Final answer
    x = 151,818.19

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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.