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Finding the Fourth Proportional to 97,393.65, 134,365.05 and 56,550.80

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Solution

The fourth proportional to 97,393.65, 134,365.05 and 56,550.80 is: 78,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,393.65 : 134,365.05 = 56,550.80 : x
  2. Step 2: Convert to fraction form
    97,393.65/134,365.05 = 56,550.80/x
  3. Step 3: Cross multiply
    97,393.65x = 134,365.05 × 56,550.80
  4. Step 4: Simplify right side
    97,393.65x = 7,598,450,649.65
  5. Step 5: Solve for x
    x = 7,598,450,649.65/97,393.65
  6. Step 6: Final answer
    x = 78,017.93

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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.