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Finding the Fourth Proportional to 56,488.51, 84,258.62 and 51,898.33

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Solution

The fourth proportional to 56,488.51, 84,258.62 and 51,898.33 is: 77,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,488.51 : 84,258.62 = 51,898.33 : x
  2. Step 2: Convert to fraction form
    56,488.51/84,258.62 = 51,898.33/x
  3. Step 3: Cross multiply
    56,488.51x = 84,258.62 × 51,898.33
  4. Step 4: Simplify right side
    56,488.51x = 4,372,881,666.10
  5. Step 5: Solve for x
    x = 4,372,881,666.10/56,488.51
  6. Step 6: Final answer
    x = 77,411.88

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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.