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Finding the Fourth Proportional to 104,465.95, 144,162.60 and 56,719.28

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Solution

The fourth proportional to 104,465.95, 144,162.60 and 56,719.28 is: 78,272.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,465.95 : 144,162.60 = 56,719.28 : x
  2. Step 2: Convert to fraction form
    104,465.95/144,162.60 = 56,719.28/x
  3. Step 3: Cross multiply
    104,465.95x = 144,162.60 × 56,719.28
  4. Step 4: Simplify right side
    104,465.95x = 8,176,798,874.93
  5. Step 5: Solve for x
    x = 8,176,798,874.93/104,465.95
  6. Step 6: Final answer
    x = 78,272.38

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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.