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Finding the Fourth Proportional to 207,068.40, 310,602.60 and 123,087.60

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Solution

The fourth proportional to 207,068.40, 310,602.60 and 123,087.60 is: 184,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,068.40 : 310,602.60 = 123,087.60 : x
  2. Step 2: Convert to fraction form
    207,068.40/310,602.60 = 123,087.60/x
  3. Step 3: Cross multiply
    207,068.40x = 310,602.60 × 123,087.60
  4. Step 4: Simplify right side
    207,068.40x = 38,231,328,587.76
  5. Step 5: Solve for x
    x = 38,231,328,587.76/207,068.40
  6. Step 6: Final answer
    x = 184,631.40

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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.