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Finding the Fourth Proportional to 121,526.67, 167,681.76 and 69,833.77

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Solution

The fourth proportional to 121,526.67, 167,681.76 and 69,833.77 is: 96,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,526.67 : 167,681.76 = 69,833.77 : x
  2. Step 2: Convert to fraction form
    121,526.67/167,681.76 = 69,833.77/x
  3. Step 3: Cross multiply
    121,526.67x = 167,681.76 × 69,833.77
  4. Step 4: Simplify right side
    121,526.67x = 11,709,849,644.37
  5. Step 5: Solve for x
    x = 11,709,849,644.37/121,526.67
  6. Step 6: Final answer
    x = 96,356.22

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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.