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Finding the Fourth Proportional to 158,798.57, 219,152.67 and 104,991.08

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Solution

The fourth proportional to 158,798.57, 219,152.67 and 104,991.08 is: 144,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,798.57 : 219,152.67 = 104,991.08 : x
  2. Step 2: Convert to fraction form
    158,798.57/219,152.67 = 104,991.08/x
  3. Step 3: Cross multiply
    158,798.57x = 219,152.67 × 104,991.08
  4. Step 4: Simplify right side
    158,798.57x = 23,009,075,508.18
  5. Step 5: Solve for x
    x = 23,009,075,508.18/158,798.57
  6. Step 6: Final answer
    x = 144,894.73

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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.