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Finding the Fourth Proportional to 92,834.51, 128,132.69 and 58,889.84

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Solution

The fourth proportional to 92,834.51, 128,132.69 and 58,889.84 is: 81,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,834.51 : 128,132.69 = 58,889.84 : x
  2. Step 2: Convert to fraction form
    92,834.51/128,132.69 = 58,889.84/x
  3. Step 3: Cross multiply
    92,834.51x = 128,132.69 × 58,889.84
  4. Step 4: Simplify right side
    92,834.51x = 7,545,712,677.76
  5. Step 5: Solve for x
    x = 7,545,712,677.76/92,834.51
  6. Step 6: Final answer
    x = 81,281.34

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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.