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Finding the Fourth Proportional to 209,980.50, 314,970.75 and 62,236.50

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Solution

The fourth proportional to 209,980.50, 314,970.75 and 62,236.50 is: 93,354.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,980.50 : 314,970.75 = 62,236.50 : x
  2. Step 2: Convert to fraction form
    209,980.50/314,970.75 = 62,236.50/x
  3. Step 3: Cross multiply
    209,980.50x = 314,970.75 × 62,236.50
  4. Step 4: Simplify right side
    209,980.50x = 19,602,677,082.38
  5. Step 5: Solve for x
    x = 19,602,677,082.38/209,980.50
  6. Step 6: Final answer
    x = 93,354.75

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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.