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Finding the Fourth Proportional to 58,655,485.20, 82,287,740.40 and 58,655,485.20

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Solution

The fourth proportional to 58,655,485.20, 82,287,740.40 and 58,655,485.20 is: 82,287,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,655,485.20 : 82,287,740.40 = 58,655,485.20 : x
  2. Step 2: Convert to fraction form
    58,655,485.20/82,287,740.40 = 58,655,485.20/x
  3. Step 3: Cross multiply
    58,655,485.20x = 82,287,740.40 × 58,655,485.20
  4. Step 4: Simplify right side
    58,655,485.20x = 4,826,627,339,173,643
  5. Step 5: Solve for x
    x = 4,826,627,339,173,643/58,655,485.20
  6. Step 6: Final answer
    x = 82,287,740.40

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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.