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Finding the Fourth Proportional to 208,451.06, 287,663.49 and 112,957.93

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Solution

The fourth proportional to 208,451.06, 287,663.49 and 112,957.93 is: 155,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,451.06 : 287,663.49 = 112,957.93 : x
  2. Step 2: Convert to fraction form
    208,451.06/287,663.49 = 112,957.93/x
  3. Step 3: Cross multiply
    208,451.06x = 287,663.49 × 112,957.93
  4. Step 4: Simplify right side
    208,451.06x = 32,493,871,647.82
  5. Step 5: Solve for x
    x = 32,493,871,647.82/208,451.06
  6. Step 6: Final answer
    x = 155,882.50

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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.