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Finding the Fourth Proportional to 65,671.74, 90,547.98 and 45,545.94

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Solution

The fourth proportional to 65,671.74, 90,547.98 and 45,545.94 is: 62,798.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,671.74 : 90,547.98 = 45,545.94 : x
  2. Step 2: Convert to fraction form
    65,671.74/90,547.98 = 45,545.94/x
  3. Step 3: Cross multiply
    65,671.74x = 90,547.98 × 45,545.94
  4. Step 4: Simplify right side
    65,671.74x = 4,124,092,864.20
  5. Step 5: Solve for x
    x = 4,124,092,864.20/65,671.74
  6. Step 6: Final answer
    x = 62,798.59

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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.