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Finding the Fourth Proportional to 79,011,946.20, 110,692,307.40 and 79,011,946.20

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Solution

The fourth proportional to 79,011,946.20, 110,692,307.40 and 79,011,946.20 is: 110,692,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,011,946.20 : 110,692,307.40 = 79,011,946.20 : x
  2. Step 2: Convert to fraction form
    79,011,946.20/110,692,307.40 = 79,011,946.20/x
  3. Step 3: Cross multiply
    79,011,946.20x = 110,692,307.40 × 79,011,946.20
  4. Step 4: Simplify right side
    79,011,946.20x = 8,746,014,637,042,663
  5. Step 5: Solve for x
    x = 8,746,014,637,042,663/79,011,946.20
  6. Step 6: Final answer
    x = 110,692,307.40

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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.