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Finding the Fourth Proportional to 64,814.64, 97,053.48 and 55,514.40

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Solution

The fourth proportional to 64,814.64, 97,053.48 and 55,514.40 is: 83,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,814.64 : 97,053.48 = 55,514.40 : x
  2. Step 2: Convert to fraction form
    64,814.64/97,053.48 = 55,514.40/x
  3. Step 3: Cross multiply
    64,814.64x = 97,053.48 × 55,514.40
  4. Step 4: Simplify right side
    64,814.64x = 5,387,865,710.11
  5. Step 5: Solve for x
    x = 5,387,865,710.11/64,814.64
  6. Step 6: Final answer
    x = 83,127.30

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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.