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Finding the Fourth Proportional to 53,152,858.40, 79,617,313.20 and 53,152,858.40

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Solution

The fourth proportional to 53,152,858.40, 79,617,313.20 and 53,152,858.40 is: 79,617,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,152,858.40 : 79,617,313.20 = 53,152,858.40 : x
  2. Step 2: Convert to fraction form
    53,152,858.40/79,617,313.20 = 53,152,858.40/x
  3. Step 3: Cross multiply
    53,152,858.40x = 79,617,313.20 × 53,152,858.40
  4. Step 4: Simplify right side
    53,152,858.40x = 4,231,887,774,708,051
  5. Step 5: Solve for x
    x = 4,231,887,774,708,051/53,152,858.40
  6. Step 6: Final answer
    x = 79,617,313.20

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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.