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Finding the Fourth Proportional to 121,603.84, 182,682.54 and 87,973.58

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Solution

The fourth proportional to 121,603.84, 182,682.54 and 87,973.58 is: 132,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,603.84 : 182,682.54 = 87,973.58 : x
  2. Step 2: Convert to fraction form
    121,603.84/182,682.54 = 87,973.58/x
  3. Step 3: Cross multiply
    121,603.84x = 182,682.54 × 87,973.58
  4. Step 4: Simplify right side
    121,603.84x = 16,071,237,047.29
  5. Step 5: Solve for x
    x = 16,071,237,047.29/121,603.84
  6. Step 6: Final answer
    x = 132,160.60

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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.