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Finding the Fourth Proportional to 197,605.60, 296,602.80 and 97,878.40

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Solution

The fourth proportional to 197,605.60, 296,602.80 and 97,878.40 is: 146,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,605.60 : 296,602.80 = 97,878.40 : x
  2. Step 2: Convert to fraction form
    197,605.60/296,602.80 = 97,878.40/x
  3. Step 3: Cross multiply
    197,605.60x = 296,602.80 × 97,878.40
  4. Step 4: Simplify right side
    197,605.60x = 29,031,007,499.52
  5. Step 5: Solve for x
    x = 29,031,007,499.52/197,605.60
  6. Step 6: Final answer
    x = 146,913.89

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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.