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Finding the Fourth Proportional to 157,655.40, 236,483.10 and 155,063.40

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Solution

The fourth proportional to 157,655.40, 236,483.10 and 155,063.40 is: 232,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,655.40 : 236,483.10 = 155,063.40 : x
  2. Step 2: Convert to fraction form
    157,655.40/236,483.10 = 155,063.40/x
  3. Step 3: Cross multiply
    157,655.40x = 236,483.10 × 155,063.40
  4. Step 4: Simplify right side
    157,655.40x = 36,669,873,528.54
  5. Step 5: Solve for x
    x = 36,669,873,528.54/157,655.40
  6. Step 6: Final answer
    x = 232,595.10

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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.