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Finding the Fourth Proportional to 159,159.94, 219,633.93 and 87,535.36

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Solution

The fourth proportional to 159,159.94, 219,633.93 and 87,535.36 is: 120,795.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,159.94 : 219,633.93 = 87,535.36 : x
  2. Step 2: Convert to fraction form
    159,159.94/219,633.93 = 87,535.36/x
  3. Step 3: Cross multiply
    159,159.94x = 219,633.93 × 87,535.36
  4. Step 4: Simplify right side
    159,159.94x = 19,225,735,130.76
  5. Step 5: Solve for x
    x = 19,225,735,130.76/159,159.94
  6. Step 6: Final answer
    x = 120,795.06

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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.