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Finding the Fourth Proportional to 97,995.48, 135,069.30 and 75,017.40

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Solution

The fourth proportional to 97,995.48, 135,069.30 and 75,017.40 is: 103,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,995.48 : 135,069.30 = 75,017.40 : x
  2. Step 2: Convert to fraction form
    97,995.48/135,069.30 = 75,017.40/x
  3. Step 3: Cross multiply
    97,995.48x = 135,069.30 × 75,017.40
  4. Step 4: Simplify right side
    97,995.48x = 10,132,547,705.82
  5. Step 5: Solve for x
    x = 10,132,547,705.82/97,995.48
  6. Step 6: Final answer
    x = 103,398.11

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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.