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Finding the Fourth Proportional to 79,607,798.60, 109,863,284.00 and 47,827,688.31

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Solution

The fourth proportional to 79,607,798.60, 109,863,284.00 and 47,827,688.31 is: 66,004,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,607,798.60 : 109,863,284.00 = 47,827,688.31 : x
  2. Step 2: Convert to fraction form
    79,607,798.60/109,863,284.00 = 47,827,688.31/x
  3. Step 3: Cross multiply
    79,607,798.60x = 109,863,284.00 × 47,827,688.31
  4. Step 4: Simplify right side
    79,607,798.60x = 5,254,506,903,625,872
  5. Step 5: Solve for x
    x = 5,254,506,903,625,872/79,607,798.60
  6. Step 6: Final answer
    x = 66,004,926.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.