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Finding the Fourth Proportional to 104,395.41, 144,064.13 and 61,379.76

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Solution

The fourth proportional to 104,395.41, 144,064.13 and 61,379.76 is: 84,703.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,395.41 : 144,064.13 = 61,379.76 : x
  2. Step 2: Convert to fraction form
    104,395.41/144,064.13 = 61,379.76/x
  3. Step 3: Cross multiply
    104,395.41x = 144,064.13 × 61,379.76
  4. Step 4: Simplify right side
    104,395.41x = 8,842,621,417.11
  5. Step 5: Solve for x
    x = 8,842,621,417.11/104,395.41
  6. Step 6: Final answer
    x = 84,703.16

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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.