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Finding the Fourth Proportional to 93,312,139.80, 139,968,209.70 and 50,313,970.20

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Solution

The fourth proportional to 93,312,139.80, 139,968,209.70 and 50,313,970.20 is: 75,470,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,139.80 : 139,968,209.70 = 50,313,970.20 : x
  2. Step 2: Convert to fraction form
    93,312,139.80/139,968,209.70 = 50,313,970.20/x
  3. Step 3: Cross multiply
    93,312,139.80x = 139,968,209.70 × 50,313,970.20
  4. Step 4: Simplify right side
    93,312,139.80x = 7,042,356,331,793,151
  5. Step 5: Solve for x
    x = 7,042,356,331,793,151/93,312,139.80
  6. Step 6: Final answer
    x = 75,470,955.30

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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.