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Finding the Fourth Proportional to 124,609.08, 186,913.59 and 68,804.01

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Solution

The fourth proportional to 124,609.08, 186,913.59 and 68,804.01 is: 103,206.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609.08 : 186,913.59 = 68,804.01 : x
  2. Step 2: Convert to fraction form
    124,609.08/186,913.59 = 68,804.01/x
  3. Step 3: Cross multiply
    124,609.08x = 186,913.59 × 68,804.01
  4. Step 4: Simplify right side
    124,609.08x = 12,860,404,515.50
  5. Step 5: Solve for x
    x = 12,860,404,515.50/124,609.08
  6. Step 6: Final answer
    x = 103,206.00

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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.