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Finding the Fourth Proportional to 93,312,052.80, 139,968,079.20 and 47,395,550.40

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Solution

The fourth proportional to 93,312,052.80, 139,968,079.20 and 47,395,550.40 is: 71,093,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,052.80 : 139,968,079.20 = 47,395,550.40 : x
  2. Step 2: Convert to fraction form
    93,312,052.80/139,968,079.20 = 47,395,550.40/x
  3. Step 3: Cross multiply
    93,312,052.80x = 139,968,079.20 × 47,395,550.40
  4. Step 4: Simplify right side
    93,312,052.80x = 6,633,864,152,114,791
  5. Step 5: Solve for x
    x = 6,633,864,152,114,791/93,312,052.80
  6. Step 6: Final answer
    x = 71,093,325.60

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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.