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Finding the Fourth Proportional to 48,953.60, 73,430.40 and 31,457.60

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Solution

The fourth proportional to 48,953.60, 73,430.40 and 31,457.60 is: 47,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,953.60 : 73,430.40 = 31,457.60 : x
  2. Step 2: Convert to fraction form
    48,953.60/73,430.40 = 31,457.60/x
  3. Step 3: Cross multiply
    48,953.60x = 73,430.40 × 31,457.60
  4. Step 4: Simplify right side
    48,953.60x = 2,309,944,151.04
  5. Step 5: Solve for x
    x = 2,309,944,151.04/48,953.60
  6. Step 6: Final answer
    x = 47,186.40

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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.