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Finding the Fourth Proportional to 104,621.40, 144,374.40 and 56,873.52

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Solution

The fourth proportional to 104,621.40, 144,374.40 and 56,873.52 is: 78,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.40 : 144,374.40 = 56,873.52 : x
  2. Step 2: Convert to fraction form
    104,621.40/144,374.40 = 56,873.52/x
  3. Step 3: Cross multiply
    104,621.40x = 144,374.40 × 56,873.52
  4. Step 4: Simplify right side
    104,621.40x = 8,211,080,325.89
  5. Step 5: Solve for x
    x = 8,211,080,325.89/104,621.40
  6. Step 6: Final answer
    x = 78,483.76

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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.