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Finding the Fourth Proportional to 57,878,125.90, 79,868,880.57 and 34,357,668.01

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Solution

The fourth proportional to 57,878,125.90, 79,868,880.57 and 34,357,668.01 is: 47,411,840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878,125.90 : 79,868,880.57 = 34,357,668.01 : x
  2. Step 2: Convert to fraction form
    57,878,125.90/79,868,880.57 = 34,357,668.01/x
  3. Step 3: Cross multiply
    57,878,125.90x = 79,868,880.57 × 34,357,668.01
  4. Step 4: Simplify right side
    57,878,125.90x = 2,744,108,482,954,399
  5. Step 5: Solve for x
    x = 2,744,108,482,954,399/57,878,125.90
  6. Step 6: Final answer
    x = 47,411,840.66

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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.