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Finding the Fourth Proportional to 345,031.40, 517,547.10 and 95,713.40

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Solution

The fourth proportional to 345,031.40, 517,547.10 and 95,713.40 is: 143,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,031.40 : 517,547.10 = 95,713.40 : x
  2. Step 2: Convert to fraction form
    345,031.40/517,547.10 = 95,713.40/x
  3. Step 3: Cross multiply
    345,031.40x = 517,547.10 × 95,713.40
  4. Step 4: Simplify right side
    345,031.40x = 49,536,192,601.14
  5. Step 5: Solve for x
    x = 49,536,192,601.14/345,031.40
  6. Step 6: Final answer
    x = 143,570.10

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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.