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Finding the Fourth Proportional to 111,875.86, 167,813.79 and 105,032.98

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Solution

The fourth proportional to 111,875.86, 167,813.79 and 105,032.98 is: 157,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,875.86 : 167,813.79 = 105,032.98 : x
  2. Step 2: Convert to fraction form
    111,875.86/167,813.79 = 105,032.98/x
  3. Step 3: Cross multiply
    111,875.86x = 167,813.79 × 105,032.98
  4. Step 4: Simplify right side
    111,875.86x = 17,625,982,448.79
  5. Step 5: Solve for x
    x = 17,625,982,448.79/111,875.86
  6. Step 6: Final answer
    x = 157,549.47

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1.5x scale

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.