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Finding the Fourth Proportional to 657,152.88, 985,730.40 and 158,516.88

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Solution

The fourth proportional to 657,152.88, 985,730.40 and 158,516.88 is: 237,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,152.88 : 985,730.40 = 158,516.88 : x
  2. Step 2: Convert to fraction form
    657,152.88/985,730.40 = 158,516.88/x
  3. Step 3: Cross multiply
    657,152.88x = 985,730.40 × 158,516.88
  4. Step 4: Simplify right side
    657,152.88x = 156,254,907,529.15
  5. Step 5: Solve for x
    x = 156,254,907,529.15/657,152.88
  6. Step 6: Final answer
    x = 237,775.58

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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.