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Finding the Fourth Proportional to 118,032.77, 177,047.76 and 70,661.09

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Solution

The fourth proportional to 118,032.77, 177,047.76 and 70,661.09 is: 105,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,032.77 : 177,047.76 = 70,661.09 : x
  2. Step 2: Convert to fraction form
    118,032.77/177,047.76 = 70,661.09/x
  3. Step 3: Cross multiply
    118,032.77x = 177,047.76 × 70,661.09
  4. Step 4: Simplify right side
    118,032.77x = 12,510,387,703.66
  5. Step 5: Solve for x
    x = 12,510,387,703.66/118,032.77
  6. Step 6: Final answer
    x = 105,990.80

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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.