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Finding the Fourth Proportional to 72,579,603.80, 101,745,814.60 and 72,579,603.80

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Solution

The fourth proportional to 72,579,603.80, 101,745,814.60 and 72,579,603.80 is: 101,745,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,603.80 : 101,745,814.60 = 72,579,603.80 : x
  2. Step 2: Convert to fraction form
    72,579,603.80/101,745,814.60 = 72,579,603.80/x
  3. Step 3: Cross multiply
    72,579,603.80x = 101,745,814.60 × 72,579,603.80
  4. Step 4: Simplify right side
    72,579,603.80x = 7,384,670,911,976,255
  5. Step 5: Solve for x
    x = 7,384,670,911,976,255/72,579,603.80
  6. Step 6: Final answer
    x = 101,745,814.60

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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.