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Finding the Fourth Proportional to 260,095.60, 390,143.40 and 147,732.40

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Solution

The fourth proportional to 260,095.60, 390,143.40 and 147,732.40 is: 221,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,095.60 : 390,143.40 = 147,732.40 : x
  2. Step 2: Convert to fraction form
    260,095.60/390,143.40 = 147,732.40/x
  3. Step 3: Cross multiply
    260,095.60x = 390,143.40 × 147,732.40
  4. Step 4: Simplify right side
    260,095.60x = 57,636,820,826.16
  5. Step 5: Solve for x
    x = 57,636,820,826.16/260,095.60
  6. Step 6: Final answer
    x = 221,598.60

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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.