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Finding the Fourth Proportional to 101,873.60, 140,582.93 and 56,550.40

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Solution

The fourth proportional to 101,873.60, 140,582.93 and 56,550.40 is: 78,038.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,873.60 : 140,582.93 = 56,550.40 : x
  2. Step 2: Convert to fraction form
    101,873.60/140,582.93 = 56,550.40/x
  3. Step 3: Cross multiply
    101,873.60x = 140,582.93 × 56,550.40
  4. Step 4: Simplify right side
    101,873.60x = 7,950,021,081.24
  5. Step 5: Solve for x
    x = 7,950,021,081.24/101,873.60
  6. Step 6: Final answer
    x = 78,038.09

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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.