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Finding the Fourth Proportional to 260,210.40, 359,081.16 and 147,030.72

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Solution

The fourth proportional to 260,210.40, 359,081.16 and 147,030.72 is: 202,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,210.40 : 359,081.16 = 147,030.72 : x
  2. Step 2: Convert to fraction form
    260,210.40/359,081.16 = 147,030.72/x
  3. Step 3: Cross multiply
    260,210.40x = 359,081.16 × 147,030.72
  4. Step 4: Simplify right side
    260,210.40x = 52,795,961,493.24
  5. Step 5: Solve for x
    x = 52,795,961,493.24/260,210.40
  6. Step 6: Final answer
    x = 202,897.20

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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.