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Finding the Fourth Proportional to 124,624.37, 171,980.75 and 68,035.74

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Solution

The fourth proportional to 124,624.37, 171,980.75 and 68,035.74 is: 93,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,624.37 : 171,980.75 = 68,035.74 : x
  2. Step 2: Convert to fraction form
    124,624.37/171,980.75 = 68,035.74/x
  3. Step 3: Cross multiply
    124,624.37x = 171,980.75 × 68,035.74
  4. Step 4: Simplify right side
    124,624.37x = 11,700,837,592.01
  5. Step 5: Solve for x
    x = 11,700,837,592.01/124,624.37
  6. Step 6: Final answer
    x = 93,888.84

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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.