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Finding the Fourth Proportional to 157,040.16, 235,562.16 and 87,056.16

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Solution

The fourth proportional to 157,040.16, 235,562.16 and 87,056.16 is: 130,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,040.16 : 235,562.16 = 87,056.16 : x
  2. Step 2: Convert to fraction form
    157,040.16/235,562.16 = 87,056.16/x
  3. Step 3: Cross multiply
    157,040.16x = 235,562.16 × 87,056.16
  4. Step 4: Simplify right side
    157,040.16x = 20,507,137,090.91
  5. Step 5: Solve for x
    x = 20,507,137,090.91/157,040.16
  6. Step 6: Final answer
    x = 130,585.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.