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Finding the Fourth Proportional to 14,208,086.60, 21,312,129.90 and 14,208,086.60

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Solution

The fourth proportional to 14,208,086.60, 21,312,129.90 and 14,208,086.60 is: 21,312,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208,086.60 : 21,312,129.90 = 14,208,086.60 : x
  2. Step 2: Convert to fraction form
    14,208,086.60/21,312,129.90 = 14,208,086.60/x
  3. Step 3: Cross multiply
    14,208,086.60x = 21,312,129.90 × 14,208,086.60
  4. Step 4: Simplify right side
    14,208,086.60x = 302,804,587,249,649.31
  5. Step 5: Solve for x
    x = 302,804,587,249,649.31/14,208,086.60
  6. Step 6: Final answer
    x = 21,312,129.90

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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.