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Finding the Fourth Proportional to 260,012, 390,018.02 and 63,020

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Solution

The fourth proportional to 260,012, 390,018.02 and 63,020 is: 94,530.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,012 : 390,018.02 = 63,020 : x
  2. Step 2: Convert to fraction form
    260,012/390,018.02 = 63,020/x
  3. Step 3: Cross multiply
    260,012x = 390,018.02 × 63,020
  4. Step 4: Simplify right side
    260,012x = 24,578,935,620.40
  5. Step 5: Solve for x
    x = 24,578,935,620.40/260,012
  6. Step 6: Final answer
    x = 94,530.00

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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.