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Finding the Fourth Proportional to 245,749.83, 368,673.93 and 77,312.52

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Solution

The fourth proportional to 245,749.83, 368,673.93 and 77,312.52 is: 115,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,749.83 : 368,673.93 = 77,312.52 : x
  2. Step 2: Convert to fraction form
    245,749.83/368,673.93 = 77,312.52/x
  3. Step 3: Cross multiply
    245,749.83x = 368,673.93 × 77,312.52
  4. Step 4: Simplify right side
    245,749.83x = 28,503,110,586.60
  5. Step 5: Solve for x
    x = 28,503,110,586.60/245,749.83
  6. Step 6: Final answer
    x = 115,984.25

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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.