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Finding the Fourth Proportional to 245,312.30, 367,980.60 and 127,214.30

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Solution

The fourth proportional to 245,312.30, 367,980.60 and 127,214.30 is: 190,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,312.30 : 367,980.60 = 127,214.30 : x
  2. Step 2: Convert to fraction form
    245,312.30/367,980.60 = 127,214.30/x
  3. Step 3: Cross multiply
    245,312.30x = 367,980.60 × 127,214.30
  4. Step 4: Simplify right side
    245,312.30x = 46,812,394,442.58
  5. Step 5: Solve for x
    x = 46,812,394,442.58/245,312.30
  6. Step 6: Final answer
    x = 190,827.75

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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.