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Finding the Fourth Proportional to 48,678.54, 72,588.12 and 46,943.95

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Solution

The fourth proportional to 48,678.54, 72,588.12 and 46,943.95 is: 70,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.54 : 72,588.12 = 46,943.95 : x
  2. Step 2: Convert to fraction form
    48,678.54/72,588.12 = 46,943.95/x
  3. Step 3: Cross multiply
    48,678.54x = 72,588.12 × 46,943.95
  4. Step 4: Simplify right side
    48,678.54x = 3,407,573,075.87
  5. Step 5: Solve for x
    x = 3,407,573,075.87/48,678.54
  6. Step 6: Final answer
    x = 70,001.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.