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Finding the Fourth Proportional to 158,710.01, 219,019.68 and 87,094.53

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Solution

The fourth proportional to 158,710.01, 219,019.68 and 87,094.53 is: 120,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,710.01 : 219,019.68 = 87,094.53 : x
  2. Step 2: Convert to fraction form
    158,710.01/219,019.68 = 87,094.53/x
  3. Step 3: Cross multiply
    158,710.01x = 219,019.68 × 87,094.53
  4. Step 4: Simplify right side
    158,710.01x = 19,075,416,090.35
  5. Step 5: Solve for x
    x = 19,075,416,090.35/158,710.01
  6. Step 6: Final answer
    x = 120,190.38

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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.