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Finding the Fourth Proportional to 93,312,095.80, 139,968,143.70 and 57,430,521.40

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Solution

The fourth proportional to 93,312,095.80, 139,968,143.70 and 57,430,521.40 is: 86,145,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,095.80 : 139,968,143.70 = 57,430,521.40 : x
  2. Step 2: Convert to fraction form
    93,312,095.80/139,968,143.70 = 57,430,521.40/x
  3. Step 3: Cross multiply
    93,312,095.80x = 139,968,143.70 × 57,430,521.40
  4. Step 4: Simplify right side
    93,312,095.80x = 8,038,443,472,081,124
  5. Step 5: Solve for x
    x = 8,038,443,472,081,124/93,312,095.80
  6. Step 6: Final answer
    x = 86,145,782.10

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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.