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Finding the Fourth Proportional to 84,498.66, 116,483.92 and 64,320.39

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Solution

The fourth proportional to 84,498.66, 116,483.92 and 64,320.39 is: 88,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,498.66 : 116,483.92 = 64,320.39 : x
  2. Step 2: Convert to fraction form
    84,498.66/116,483.92 = 64,320.39/x
  3. Step 3: Cross multiply
    84,498.66x = 116,483.92 × 64,320.39
  4. Step 4: Simplify right side
    84,498.66x = 7,492,291,002.33
  5. Step 5: Solve for x
    x = 7,492,291,002.33/84,498.66
  6. Step 6: Final answer
    x = 88,667.57

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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.