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Finding the Fourth Proportional to 157,328.40, 235,992.60 and 141,776.40

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Solution

The fourth proportional to 157,328.40, 235,992.60 and 141,776.40 is: 212,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,328.40 : 235,992.60 = 141,776.40 : x
  2. Step 2: Convert to fraction form
    157,328.40/235,992.60 = 141,776.40/x
  3. Step 3: Cross multiply
    157,328.40x = 235,992.60 × 141,776.40
  4. Step 4: Simplify right side
    157,328.40x = 33,458,181,254.64
  5. Step 5: Solve for x
    x = 33,458,181,254.64/157,328.40
  6. Step 6: Final answer
    x = 212,664.60

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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.