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Finding the Fourth Proportional to 70,014,141.60, 105,021,212.40 and 44,473,480.80

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Solution

The fourth proportional to 70,014,141.60, 105,021,212.40 and 44,473,480.80 is: 66,710,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,014,141.60 : 105,021,212.40 = 44,473,480.80 : x
  2. Step 2: Convert to fraction form
    70,014,141.60/105,021,212.40 = 44,473,480.80/x
  3. Step 3: Cross multiply
    70,014,141.60x = 105,021,212.40 × 44,473,480.80
  4. Step 4: Simplify right side
    70,014,141.60x = 4,670,658,873,264,122
  5. Step 5: Solve for x
    x = 4,670,658,873,264,122/70,014,141.60
  6. Step 6: Final answer
    x = 66,710,221.20

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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.