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Finding the Fourth Proportional to 342,066.60, 472,048.74 and 189,114.30

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Solution

The fourth proportional to 342,066.60, 472,048.74 and 189,114.30 is: 260,975.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,066.60 : 472,048.74 = 189,114.30 : x
  2. Step 2: Convert to fraction form
    342,066.60/472,048.74 = 189,114.30/x
  3. Step 3: Cross multiply
    342,066.60x = 472,048.74 × 189,114.30
  4. Step 4: Simplify right side
    342,066.60x = 89,271,167,030.98
  5. Step 5: Solve for x
    x = 89,271,167,030.98/342,066.60
  6. Step 6: Final answer
    x = 260,975.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.