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Finding the Fourth Proportional to 157,592.40, 236,542.20 and 78,795.60

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Solution

The fourth proportional to 157,592.40, 236,542.20 and 78,795.60 is: 118,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,592.40 : 236,542.20 = 78,795.60 : x
  2. Step 2: Convert to fraction form
    157,592.40/236,542.20 = 78,795.60/x
  3. Step 3: Cross multiply
    157,592.40x = 236,542.20 × 78,795.60
  4. Step 4: Simplify right side
    157,592.40x = 18,638,484,574.32
  5. Step 5: Solve for x
    x = 18,638,484,574.32/157,592.40
  6. Step 6: Final answer
    x = 118,270.20

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1.5x scale

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.