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Finding the Fourth Proportional to 196,477.60, 294,762.48 and 78,155.68

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Solution

The fourth proportional to 196,477.60, 294,762.48 and 78,155.68 is: 117,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,477.60 : 294,762.48 = 78,155.68 : x
  2. Step 2: Convert to fraction form
    196,477.60/294,762.48 = 78,155.68/x
  3. Step 3: Cross multiply
    196,477.60x = 294,762.48 × 78,155.68
  4. Step 4: Simplify right side
    196,477.60x = 23,037,362,062.89
  5. Step 5: Solve for x
    x = 23,037,362,062.89/196,477.60
  6. Step 6: Final answer
    x = 117,251.85

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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.