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Finding the Fourth Proportional to 487,117.80, 730,547.10 and 150,157.80

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Solution

The fourth proportional to 487,117.80, 730,547.10 and 150,157.80 is: 225,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,117.80 : 730,547.10 = 150,157.80 : x
  2. Step 2: Convert to fraction form
    487,117.80/730,547.10 = 150,157.80/x
  3. Step 3: Cross multiply
    487,117.80x = 730,547.10 × 150,157.80
  4. Step 4: Simplify right side
    487,117.80x = 109,697,345,332.38
  5. Step 5: Solve for x
    x = 109,697,345,332.38/487,117.80
  6. Step 6: Final answer
    x = 225,196.75

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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.