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Finding the Fourth Proportional to 261,698.60, 392,547.90 and 95,551.40

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Solution

The fourth proportional to 261,698.60, 392,547.90 and 95,551.40 is: 143,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,698.60 : 392,547.90 = 95,551.40 : x
  2. Step 2: Convert to fraction form
    261,698.60/392,547.90 = 95,551.40/x
  3. Step 3: Cross multiply
    261,698.60x = 392,547.90 × 95,551.40
  4. Step 4: Simplify right side
    261,698.60x = 37,508,501,412.06
  5. Step 5: Solve for x
    x = 37,508,501,412.06/261,698.60
  6. Step 6: Final answer
    x = 143,327.10

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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.