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Finding the Fourth Proportional to 95,878.40, 143,866.12 and 64,648

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Solution

The fourth proportional to 95,878.40, 143,866.12 and 64,648 is: 97,004.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,878.40 : 143,866.12 = 64,648 : x
  2. Step 2: Convert to fraction form
    95,878.40/143,866.12 = 64,648/x
  3. Step 3: Cross multiply
    95,878.40x = 143,866.12 × 64,648
  4. Step 4: Simplify right side
    95,878.40x = 9,300,656,925.76
  5. Step 5: Solve for x
    x = 9,300,656,925.76/95,878.40
  6. Step 6: Final answer
    x = 97,004.72

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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.