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Finding the Fourth Proportional to 186,020.54, 279,030.80 and 45,779.16

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Solution

The fourth proportional to 186,020.54, 279,030.80 and 45,779.16 is: 68,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,020.54 : 279,030.80 = 45,779.16 : x
  2. Step 2: Convert to fraction form
    186,020.54/279,030.80 = 45,779.16/x
  3. Step 3: Cross multiply
    186,020.54x = 279,030.80 × 45,779.16
  4. Step 4: Simplify right side
    186,020.54x = 12,773,795,409.23
  5. Step 5: Solve for x
    x = 12,773,795,409.23/186,020.54
  6. Step 6: Final answer
    x = 68,668.74

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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.