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Finding the Fourth Proportional to 58,816.64, 81,176.64 and 42,953.60

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Solution

The fourth proportional to 58,816.64, 81,176.64 and 42,953.60 is: 59,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,816.64 : 81,176.64 = 42,953.60 : x
  2. Step 2: Convert to fraction form
    58,816.64/81,176.64 = 42,953.60/x
  3. Step 3: Cross multiply
    58,816.64x = 81,176.64 × 42,953.60
  4. Step 4: Simplify right side
    58,816.64x = 3,486,828,923.90
  5. Step 5: Solve for x
    x = 3,486,828,923.90/58,816.64
  6. Step 6: Final answer
    x = 59,283.03

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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.