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Finding the Fourth Proportional to 255,011,421.30, 357,696,234.30 and 255,011,421.30

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Solution

The fourth proportional to 255,011,421.30, 357,696,234.30 and 255,011,421.30 is: 357,696,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,011,421.30 : 357,696,234.30 = 255,011,421.30 : x
  2. Step 2: Convert to fraction form
    255,011,421.30/357,696,234.30 = 255,011,421.30/x
  3. Step 3: Cross multiply
    255,011,421.30x = 357,696,234.30 × 255,011,421.30
  4. Step 4: Simplify right side
    255,011,421.30x = 91,216,625,102,500,816
  5. Step 5: Solve for x
    x = 91,216,625,102,500,816/255,011,421.30
  6. Step 6: Final answer
    x = 357,696,234.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.