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Finding the Fourth Proportional to 346,851.60, 520,066.20 and 136,237.20

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Solution

The fourth proportional to 346,851.60, 520,066.20 and 136,237.20 is: 204,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,851.60 : 520,066.20 = 136,237.20 : x
  2. Step 2: Convert to fraction form
    346,851.60/520,066.20 = 136,237.20/x
  3. Step 3: Cross multiply
    346,851.60x = 520,066.20 × 136,237.20
  4. Step 4: Simplify right side
    346,851.60x = 70,852,362,902.64
  5. Step 5: Solve for x
    x = 70,852,362,902.64/346,851.60
  6. Step 6: Final answer
    x = 204,272.84

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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.